单词	octagon
释义	octagonoctagon /ˈɑktəˌgɑn/ noun [countable] Etymology ETYMOLOGYoctagon Origin: 1500-1600 Latin octagonum, from Greek, from okta- eight + -gonon -gon math, geometry a flat shape with eight sides—octagonal /ɑkˈtægənl/ adjective:  an octagonal room
随便看	cutting edge cutting-edge cutting room cut-up Cuvier, Georges cuz C & W cwt. -cy cyan cyanide cyber- cyberbully cyberbullying cybercafé cybercrime cyberfraud cyberia cybernetic cybernetics cyberpunk cyber rage cybersex cyberspace cyborg

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